Rail-fastening



C. A. HENRY.

RAIL FASTENING.

APPLlCATlON FILED APR. 28, 1920.

Patented July 27, 1920.

4 SHEETSSHEET I.

III!!! C. A. HENRY.

RAIL FASTENING.

APPLICATION FILED APR.28, 1920.

Patented July 27, 1920.

4 SHEETS-SHEET 2.

C-. A. HENRY.

RAIL FASTENING. 1 APPLICATION FILED APR. 28, I920.

Patented July 27, 1920.

4 SHEETS-SHEET 3.

wouf,

C. A. HENRY.

RAIL FASTENING. APPLICATION man APR.28. 1920.

1,34 8, 1 12, Patented July 27, 1920.

4 SHEETS SHEET 4.

UNITED. STATES CHARLES ALBERT HENRY, PARIS, FRANCE.

BAIL-FASTENING.

- Application filed April 28,

To all whom it may concern: v

Be it known that I, CHARLES ALBERT HENRY, citizen of .the Republic of France,

residing at Paris, 'Seine, France, have invented certain new and useful Improvements in RailFastenings; and I do hereby declare the following to be a full, clear, and

= exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the. same, reference being. had to the accompanying drawings, and to letters or fi ures of reference marked thereon, which form a part of this specification. l

This invention relates to bolts for fixing metallic constructional elements on to re inforced concrete structures and particularly for fixing railway rails on to rein,- forced concrete sleepers, or machinery frames on their foundations,-or sections of any description on towalls, columns, and the like. i

This invention has for its object bolt enabling metallic .members 'to be. secured easily and very firmly to reinforced concrete. g i H l Forseveral years it has been sought to apply reinforced concrete to the construci tion of'railway sleepers, but the great difficulty met hitherto has been to find a system of fastening which is simple, solid and p n y- This purpose is realized bythe present invention according to. which a system of fastening consists ofa single boltthe curved stem of which formsalmost ahalf. circle, and which islocated in a tubularrecess of semi-circular shape, provided in thesleeper while the latter is being molded. This tubular recess allows the stem of the boltto come out on the upper face of the sleeper by, two openings diagonally situated in respect fof the bearing surface of the rail flange onthe upper face of the sleeper.

The tightening of the nut communicates the strain through the bolt to clamps which grip the edges of the rail and maintain said rail in position. The bolt may be replaced by a rod threaded-atbothends with a nut at each end.

Referring to the accompanying drawings: Figures 1 to 6 show as an example the details of the invention applied to a sleeperprovided with a steel bearing piece with Specification of Letters Patent.

Patented packingbetween the rail at the sleepers.

Fig. 1 is a side elevation of a sleeper near the end with the'fastening.

Fig. 2

Fig. 3 is a section of the fastening bolt 7 along the line A-B of Fig. 2.

Fig. l is a sectional view from one side of the sleeper with the fastening, along the line CD of Fig. 2. i

Fig. 5 is a perspective view of one end of asleeper prepared to receive the bearing plece and the parts of the attaching device. @Fig. 6 is a magnified sectionalong the lineE-FofFig.3."

Fig. 7 showsthe application ofthe'curved bolt for securingan I-beam to a reinforced concrete wall. p i

Fig. 8 is a perspective view fied form of the curved bolt. Fig. 9 is a perspective View of a reinforced concrete sleeper prepared to receive of a niodicurved bolts. 1 o Fig. 10 is a .transversesection of a railway track constructed on reinforced concretesleepers.

ner of fixing the rails by meansof clamps. Fig.12 shows, also on alarger scale, a sectionon line G-H of Fig. 10. v

Figs-13 to 16 represent a set of clamps I is a plan of the sleeper with the I fastening.

.Fig. 11 shows on a largerscalethe man allowing thedistance between the rails to I be varied along the; curves between certain limits. I f f1.

- The bolt is. sufficiently strong to resist shocks, it is springy, because it works along all its length, since it is not-,embeddedfin the concrete. Its sliding can be facilitated in interposing a sheet of lead or of plastic or greasy material between thebolt and-the concrete, on the side, on which it bears when tightening takes place. 7 p Referring first to the form of Figs. 1to6; the head a of the bolt rests-on the. clamp 12. The portion 0 of'the bolt is straight so that the head a should rest squarely on the facev of the clamp b. 1

The clamp (Z has theiupper .face machined perpendicularly to the axis of the bolt at its end, so: that the nut 0 should be able to efiiciently of itsaxi s, I Y I 4 To provide the recess for the bolt duringtighten the bolt thedirection the molding of the sleeper, a mandrel in the shape of a half ring of ovoidal section is used, the small end-of the mandrel having a diameter slightly greater than that of the bolt (see Fig. (3). The mandrel is slightly conical to permit its withdrawal after molding.

A wire may be coiled around the man drel so as to form an irregular spiral, which remains embedded in the concrete and protectsit against the effect of the pressure of the bolt. 1

- It is seenfroni the above description that the invention consists in a system of fasteninglof metallic structural elements such as rails. on reinforced concrete, by a single bolt, cheap, solid, free in a recess provided in a reinforced concrete sleeper during the manufacture of said sleeper. i

The free bolt being springy, its stem presses against the concrete 'along'its whole length, and one" half of its surface, and em bracing thercentral bearing portions of the Concrete which, being'gripped between the railand the concrete, are'stressed uniformly and transmit the stresses as a whole 'to the sleeper block. It will be understood how easily this bolt can be putjin position and taken outin already laid tracks, allowing even the rails to b'e changed without disturbing the sleepers, therefore, forall the above reasons, realizing a considerable economyin the application of the reinforced --'Referringfnow to the form of concrete sleepers to railway tracks. This fastening can be applied to numerous types of concrete sleepers or to the concrete stringers supportingtherails along their whole length, a system'frequently used for tramway tracks and for tracks' laid upon understructures in reinforced concrete, such as work piers and harbor quays.

- Fig. shows the application of the curved 1 bolt to secure an I-beam upon a reinforced concrete wall, or poleor the like, but the invention can'be applied in every case where it is necessary to secure any metallic-piece upon reinforcedconcrete-masonry. Figs. 8 to 16: L

-The' bolt, shown separate in 8, in-g eludes a semi-circular flattened portion f,

' terminated at the two ends with parallel 1 straight cylindrical "stems g which are threaded to receive tightening nuts 6. Two

grooves k h (Fig. 9) are provided in the concretesleeper similar to the grooves for the chairs or wooden sleepers, and in which. a wooden or felt solei'is"placed, upon which rests the fiangeof the rail; in these grooves h hare the openings 72 of thetubular semi-circular"recesses Z comprising portionm, in which the bolts pass, and-the section of which, shown in Fig. 12, is such" thatthe saidbolts can slide therein.

When the nuts e are tightened; on the clamps securing the rail, the fiat part f of the bolt tightens the part m, also fiat, of the tubular semi=circular recess Z of the sleeper,

and acting as a hoop, the tightening is thereby produced. by, a plane surface distributing the pressure caused by the tightening of the nuts;

The clamps 0 upon which the tightening nuts 0 of the bolts act, grip the edge of the rail and react against the wooden or felt sole and are maintained in their position, which determines the distance between the rails, by the tightening of the bolt, on one hand, and on the other hand by'the support on the concrete against the wall of the groove h. The clamps 0 are cut from a plate'of 1 steel, and the notch 19, made with a planer,

has the shape of the edge of the railflange, but this notch can be more or less deep (Figs. 13 to 16) to allow the edge of the said flange to be engaged more or less under which are not springy and which would i break'under the lateral pressure ofthecar wheels; a f-E Figs. 13 to 16 show four models of clamps which, by their combination on thetwo sides of the track can give an extra separation of the rails up to 30 millimeters, as seen by the outlines shown in interrupted lines on Fig. 11 which shows one side of thetrack.

' Theadvantage' of this system is that the same sleeper and the same bolt, with'diflerent' clamps, allowthe use of several types of rails the similar, a

Claims:

1', A: fasteningjdevicefor fining}, metallic members on to reinforced concrete, com

prising: a bolt with a curved stem approximately semi-circular in shapeja part of re inforced concrete, a semi-circular tubular channel "provided in the concrete during molding,two clamps adapted to grip the metallic niember eachclamp having a perforationfor the stem of said bolt, and means for tightening said member on to saidjconcrete.

2. A fastening "device for fixing metallic profiles of which are somewhat members onto reinforced'concrete, comprising: a bolt witha'curved stem approxi mately semi-'circularin shape, straight and threaded end portions terminating the stem of the bolt, a part ofreinforced concrete,a semi-circular tubular'ichannel provided in the concrete during mo lding, two clamps adapted to grip the metallic member, each clamp having a perforation for the stem of said bolt, and tightening nuts adapted to prising: a bolt with a curved stern approxi mately semi-circular in shape, a part of reinforced concrete, a semi-circular tubular channel provided in the concrete during molding, the apertures of which are diagonally situated with respect to the axis of the metallic member, two clamps adapted to grip said member, each clamp having a perforation for the stem of said bolt, and means for tightening said member on to said concrete.

4. A fastening device for fixing a railway rail on to a reinforced concrete sleeper, comprising: a bolt approximately semi-circular V in shape, a stem of flattened section on said bolt,straight and threaded end portions terminating the two ends of said stem, a sleeper of reinforced concrete, a fiat groove in said sleeper, an approximately semi-circular tubular channel provided in the concrete While molding and opening in said flat groove, a fiat surface on'said channel to receive the flattened portion of the bolt, a pair of perforated clamps for each bolt, parallel straight cylindrical threaded end portions to said bolt adapted to project through saidperforations,

and tightening nuts adapted to fit on said threaded end portions.

5. A fastening device for fixing a railway rail on to a reinforced concrete sleeper, comprising: a bolt with a curved stem approximately semi-circular in'shape, straight and threaded ends terminating said stem, a sleeper of reinforced concrete, a flat groove in said sleeper, an approximately semi-circular channel provided in the concrete during molding, a perforated notched clamp located in the groove for one end of said bolt, a second perforated clamp with anotch of different depth for the other end of said bolt, and tightening nuts adaptedto fit on said threaded ends of the bolt.

In testimony that I claim the foregoing as my invention I have signed my name.

CHARLES ALBERT HENRY. 

